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水权准市场交易模型及市场均衡分析 被引量:22
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作者 罗慧 李良序 +1 位作者 王梅华 刘国彬 《水利学报》 EI CSCD 北大核心 2006年第4期492-498,共7页
本文将水权的水量权和污染权有机结合,提出建立一种“准市场”的水权交易模型。始终把保障河道内流量需求和保证水质作为环境约束条件,把水质影响集成到水量配置中,结合政府管制与市场机制两种配置方式的优势,建立了兼顾两种水权的准市... 本文将水权的水量权和污染权有机结合,提出建立一种“准市场”的水权交易模型。始终把保障河道内流量需求和保证水质作为环境约束条件,把水质影响集成到水量配置中,结合政府管制与市场机制两种配置方式的优势,建立了兼顾两种水权的准市场交易模型。通过解决最优控制问题研究了中国水权交易市场均衡问题,求解得出水市场均衡Nash解,发现负外部性随自变量线性变化,邻近水用户之间的外部效应是递增的,而且越到下游地区越明显;也发现了交易成本是决定水权交易市场效率的最重要的因素;最后,得出了一些对于中国水权准市场交易有意义的启示。 展开更多
关键词 水权 准市场设计 政府管制 外部性 市场均衡
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Facilitating Trade in Organic Food Products: The Case of India and ASEAN
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作者 Arpita Mukherjee Avantika Kapoor 《Journal of Agricultural Science and Technology(B)》 2018年第4期253-265,共13页
This paper discusses how India and Association of Southeast Asian Nations (ASEAN) countries can increase their trade in organic food products. With rise in demand for organic food products globally, India and select... This paper discusses how India and Association of Southeast Asian Nations (ASEAN) countries can increase their trade in organic food products. With rise in demand for organic food products globally, India and select ASEAN member countries have become key producers and exporters of organic food products. Trade in organic food products is governed by regulations, standards, certification and accreditation procedures, which enables differentiation of organic products from conventional products. Organic standards ensure premium price for the farmers and producers, while consumers are assured of authenticity of the product. Standards can act as a barrier to trade as regulations governing organic food products can vary across countries. Some countries are also in process of developing regulations. This paper discusses the role of different multilateral agencies in designing standards and how countries can address issues of difference in standards by signing unilateral and bilateral equivalence arrangements, trade agreements and harmonizing their standards within regional groups. It also discusses how India and ASEAN countries can align their domestic regulations in line with the global best practices so that they can sign equivalence arrangements to enhance their exports. The paper concludes that measures such as coming up with a comprehensive definition of "organic", having a uniform standard for organic products encompassing domestic market and trade, having a single nodal agency for both domestic market and exports, developing organic clusters and reducing the cost of third-party certification will help enhance trade in India and ASEAN, and enable these countries to access third country markets. 展开更多
关键词 ASEAN equivalence arrangement INDIA organic food product TRADE agriculture.
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